The reason it is important to consider what filter media to use when we build
biological filter systems, is to increase the available surface area for these
bacteria to colonize. Rock is an economical media used in pond filters because of rock's low cost and availability. It may seem like good material
to use for a biological filter, but rock or crushed gravel is not the only
material that can be used as a filter media and can be heavy to take out. BioBalls are fish-safe material that
bacteria can attach to and is suitable for filter media in fish ponds. These are convenient for many as they float and when used in a media bag do a great job.

The important consideration is to keep the pollutants and unwanted debris out
of our ponds, while keeping the beneficial bacteria in our systems.

50 Pieces

Black in Color

1-1/2" Diameter

Approximately 780 bioballs per cubic foot

Approximately 22.7328 square inches of surface
area per bioball

Made in the USA

A rule of thumb for fresh water ponds is to use about 1 ball for every 2 gallons
of water for proper biological filtration.